           (when-let [audio @audio-ref]
             (if (.-muted audio)
               [:button.pure-button.pure-button-active
-               {:on-click (fn [] (set! (.-muted audio) false))}
+               {:on-click #(set! (.-muted audio) false)}
                [:i.fa.fa-volume-off]]
               [:button.pure-button
-               {:on-click (fn [] (set! (.-muted audio) true))}
+               {:on-click #(set! (.-muted audio) true)}
                [:i.fa.fa-volume-up]]))
 
 


          (when-let [audio @audio-ref]
            (if (.-paused audio)
              [:button.pure-button.pure-button-primary
               {:on-click #(.play audio)}
               [:i.fa.fa-play]
               [:span "Play"]]
              [:button.pure-button.pure-button-primary.pure-button-active
               {:on-click #(.pause audio)}
               [:i.fa.fa-pause]
               [:span "Pause"]]))


       [:form.pure-form
        {:ref #(reset! form-ref %)}
        [:input.pure-input-2-3 {:type "file" :name "track"}]
        [:input.pure-button.pure-input-1-3
         {:type "button" :value "Upload"
          :on-click #(when-let [form @form-ref] (req/upload! form))}]
        [progress-bar]]
